CHECK-IN AGE AND HOTEL POLICIES
The Cosmopolitan of Las Vegas, Autograph Collection
The Cosmopolitan of Las Vegas, Autograph Collection lists a minimum check-in age of 21 on its official property source.
3708 South Las Vegas Boulevard, Las Vegas, Nevada, USA, 89109
Age policy last verified (18 days ago)
The Cosmopolitan of Las Vegas, Autograph Collection: the check-in answer
The Cosmopolitan of Las Vegas, Autograph Collection lists a minimum check-in age of 21 on its official property source.
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Booking links do not confirm check-in eligibility. Confirm age, ID, card and deposit requirements with the hotel.
Listed minimum age: 21. Enter your age to check it.
Travellers under 21 are below the listed minimum check-in age at The Cosmopolitan of Las Vegas, Autograph Collection. Among 54 reviewed Las Vegas hotels, 13 list 18 or lower and 41 list 21 or older. Marriott does not publish one check-in age for every address. Still unconfirmed here: deposit.
Under 21? Nearby 18+ hotels
The Cosmopolitan of Las Vegas, Autograph Collection lists a minimum check-in age of 21. These other reviewed Las Vegas hotels list 18 or lower. A listed age is not a booking confirmation.
Sponsored · Expedia and Booking.com affiliate links. We may earn a commission at no extra cost to you.
- Courtyard by Marriott Las Vegas Convention CenterListed minimum check-in age 18
- Fairfield by Marriott Inn & Suites Las Vegas NorthwestListed minimum check-in age 18
- Fairfield Inn Las Vegas Convention CenterListed minimum check-in age 18
- Golden Nugget Las VegasListed minimum check-in age 18
- Hyatt Place Las VegasListed minimum check-in age 18
- JW Marriott Las Vegas Resort & SpaListed minimum check-in age 18
Enter your age to compare it.
This compares your age with the published threshold only; confirm ID, card and deposit with The Cosmopolitan of Las Vegas, Autograph Collection before paying.
More rules for your stay
Age eligibility, payment and other policies are checked separately.
What else do I need?
Each field keeps its own source and review date. “Not stated” does not mean “not required.”
- Identification Known
- Valid government-issued photo identification is required at check-in.Official evidence · reviewed Oct 3, 2026
- Payment card Known
- Bring the credit or debit card used for the reservation. If it is unavailable, the hotel refunds the applied booking deposit and collects a new payment method.Official evidence · reviewed Oct 4, 2026
- Deposit or hold Known
- An incidental hold of $150 per day applies. With a debit card, the authorization appears as a charge; remaining funds are refunded at checkout.Official evidence · reviewed Oct 4, 2026
- Room availability
- Not checked. Visit the hotel website for your dates.
Does Marriott allow 18-year-olds to check in? covers the brand pattern. Someone else paying? Check guest names, card authorization and arrival deadlines before booking.
Policy evidence for The Cosmopolitan of Las Vegas, Autograph Collection
“Not stated” does not mean “not required.” Each field keeps its own source and review date. A 24-hour desk does not guarantee a booking will be held after midnight.
Deposit and payment Confirmed
$150 per day hold
- Incidental hold
- $150 per dayOfficial evidence · reviewed Oct 4, 2026
The property FAQ states a $150 daily incidental hold and explicitly describes debit-card authorization and unused-fund refund treatment. The original reservation card is requested at arrival; if missing, its booking deposit is refunded and a new payment method collected. The published address at 3708 Las Vegas Boulevard South matches the catalog. - Debit accepted for arrival hold
- YesOfficial evidence · reviewed Oct 4, 2026
The property FAQ states a $150 daily incidental hold and explicitly describes debit-card authorization and unused-fund refund treatment. The original reservation card is requested at arrival; if missing, its booking deposit is refunded and a new payment method collected. The published address at 3708 Las Vegas Boulevard South matches the catalog. - Identification
- Valid government-issued photo identification is required at check-in.Official evidence · reviewed Oct 3, 2026
The MGM Collection FAQ, which explicitly covers this hotel, requires government photo identification. · Earlier evidence retained; not a new source check. - Release timing
- Refund processing may take 7–10 business days for domestic travelers or 7–30 business days for international travelers; contact the bank if it takes longer.Official evidence · reviewed Oct 4, 2026
The property FAQ states a $150 daily incidental hold and explicitly describes debit-card authorization and unused-fund refund treatment. The original reservation card is requested at arrival; if missing, its booking deposit is refunded and a new payment method collected. The published address at 3708 Las Vegas Boulevard South matches the catalog. - Payment card
- Bring the credit or debit card used for the reservation. If it is unavailable, the hotel refunds the applied booking deposit and collects a new payment method.Official evidence · reviewed Oct 4, 2026
The property FAQ states a $150 daily incidental hold and explicitly describes debit-card authorization and unused-fund refund treatment. The original reservation card is requested at arrival; if missing, its booking deposit is refunded and a new payment method collected. The published address at 3708 Las Vegas Boulevard South matches the catalog. - Deposit details
- An incidental hold of $150 per day applies. With a debit card, the authorization appears as a charge; remaining funds are refunded at checkout.Official evidence · reviewed Oct 4, 2026
The property FAQ states a $150 daily incidental hold and explicitly describes debit-card authorization and unused-fund refund treatment. The original reservation card is requested at arrival; if missing, its booking deposit is refunded and a new payment method collected. The published address at 3708 Las Vegas Boulevard South matches the catalog.
Review due Dec 2, 2026 · version 3
Pets Not yet reviewed
This module has not yet been verified for this hotel. Ask the property before paying.
Resort or destination fee Not yet reviewed
This module has not yet been verified for this hotel. Ask the property before paying.
Parking Not yet reviewed
This module has not yet been verified for this hotel. Ask the property before paying.
Arrival and departure Confirmed
Check-in 15:00 · Check-out 11:00
- Standard check-in (local time)
- 15:00Official evidence · reviewed Oct 4, 2026
The official property page gives check-in as 3:00 pm local time. - Standard check-out (local time)
- 11:00Official evidence · reviewed Oct 4, 2026
The official property page gives check-out as 11:00 am local time. - 24-hour front desk
- YesOfficial evidence · reviewed Oct 4, 2026
The property services section lists a round-the-clock front desk; this does not confirm a late-arrival guarantee.
Review due Jan 2, 2027 · version 2
Explore booking options for The Cosmopolitan of Las Vegas, Autograph Collection
Choose your dates and occupancy on Expedia or Booking.com.
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Booking links do not confirm check-in eligibility. Confirm age, ID, card and deposit requirements with the hotel.
Listed minimum age: 21. Enter your age to check it.
CheckInAge does not display room prices or availability. Booking links do not change the documented age result.
Property facts and age evidence
- Street address
- 3708 South Las Vegas Boulevard
- City and state
- Las Vegas, NV 89109
- Chain
- Marriott
- Listed minimum age
- 21
- Official source
- marriott.com
- Last verified
- Review due by
What the official page says
Marriott's official MGM Collection FAQ explicitly names The Cosmopolitan of Las Vegas, Autograph Collection among hotels requiring check-in at 21 or older.
Evidence for ID, card and deposit
- Photo ID: The MGM Collection FAQ, which explicitly covers this hotel, requires government photo identification. Reviewed Oct 3, 2026.
- Payment card: The MGM Collection FAQ, which explicitly covers this hotel, requires a major credit card at arrival. Reviewed Oct 3, 2026.
Questions about The Cosmopolitan of Las Vegas, Autograph Collection
What is the check-in age at The Cosmopolitan of Las Vegas, Autograph Collection?
The Cosmopolitan of Las Vegas, Autograph Collection lists a minimum check-in age of 21 on its official property page (marriott.com), reviewed Oct 3, 2026.
Can an 18-year-old check in alone at The Cosmopolitan of Las Vegas, Autograph Collection?
The Cosmopolitan of Las Vegas, Autograph Collection lists a standard minimum of 21, so age 18 is below its requirement.
How does The Cosmopolitan of Las Vegas, Autograph Collection compare with other Las Vegas hotels?
CheckInAge has reviewed 54 Las Vegas hotels: 13 list a minimum age of 18 or lower, 41 list 21 or older. The Cosmopolitan of Las Vegas, Autograph Collection lists a minimum of 21. This is our reviewed sample, not every Las Vegas hotel.
What ID, card and deposit does The Cosmopolitan of Las Vegas, Autograph Collection state?
Identification: Valid government-issued photo identification is required at check-in. Payment card: Bring the credit or debit card used for the reservation. If it is unavailable, the hotel refunds the applied booking deposit and collects a new payment method. Deposit or hold: An incidental hold of $150 per day applies. With a debit card, the authorization appears as a charge; remaining funds are refunded at checkout.
What is the arrival and departure policy at The Cosmopolitan of Las Vegas, Autograph Collection?
Check-in 15:00 · Check-out 11:00. Read the property-specific conditions and official evidence above.
What is the deposit and payment policy at The Cosmopolitan of Las Vegas, Autograph Collection?
$150 per day hold. Read the property-specific conditions and official evidence above.
Other Marriott hotels in Las Vegas
We have reviewed 34 other Marriott hotels in Las Vegas; 7 currently list a minimum age of 18 or lower. Each address has its own rule, so one hotel’s age does not carry over to another.
- The ENGLiSH Hotel, Las Vegas, a Tribute Portfolio Hotel — listed minimum 21
- The Reserve at Park MGM, Autograph Collection — listed minimum 21
- The Signature at MGM Grand — listed minimum 21
- The Westin Las Vegas Hotel & Spa — listed minimum 21
- AC Hotel Las Vegas Symphony Park — listed minimum 21
- ARIA Resort & Casino, Autograph Collection — listed minimum 21
Policy revision history
Earlier versions stay public.
| Version | Minimum | Source reviewed | Published |
|---|---|---|---|
| 2 · current | 21 | Oct 3, 2026 | Oct 3, 2026 |
| 1 | 21 | Sep 30, 2026 | Sep 30, 2026 |
Policies in Las Vegas
Other policy revisions
Each module has an independent review history.
| Module | Version | Recorded answer | Reviewed |
|---|---|---|---|
| Deposit and payment | 3 | $150 per day hold | Oct 3, 2026 |
| Arrival and departure | 2 | Check-in 15:00 · Check-out 11:00 | Oct 4, 2026 |
| Deposit and payment | 2 | Payment details recorded; hold amount not stated | Oct 3, 2026 |
| Arrival and departure | 1 | Check-in 15:00 · Check-out 11:00 | Oct 4, 2026 |
| Deposit and payment | 1 | Payment details recorded; hold amount not stated | Oct 3, 2026 |
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