Wish you were here?
LocationLas Vegas - Strip
General policies & fine print
Nightly Incidental Deposit Policy:
Standard Room Types
• Credit Card: $150 per night
• Cash: $300 per night
Suites (Terrace Suite and Wraparound Terrace Suite, applies to Lanai Suites and Two Bedroom City Suites as well)
• Credit Card: $150 per night
• Cash: $500 per night
Bungalows and Chelsea Penthouses
• Credit Card: $1,000 per night
• Cash: $1,000 with prior approval by The Cosmopolitan
Individuals attending a convention cannot book this property for their stay. If found attending a convention, guests may be subject to higher room rates upon arrival.
Resort Fee: A mandatory hotel-imposed fee is charged and collected by the hotel either at check-in or check-out.
Mandatory hotel-imposed resort fee inclusions:
•Unlimited local, toll-free, and domestic long-distance telephone calls (all 50 states).
•Fitness Center access (applicable to both centers in the Boulevard and The Chelsea Towers)
•Tennis court access (based on availability)
The above list may not be comprehensive. Mandatory hotel-imposed fees may not include tax and are subject to change at any time. The hotel can provide current fee and inclusions when you check-in.
Room taxes are included in vacation price.
Reservation changes may not be permitted unless authorized by the hotel.
Up to 2 dogs per room are allowed.
Dogs must weigh 25 pounds or less each, and be present at time of check-in.
Dogs are only allowed in specific room category (Terrace One Bedroom Fountain View or Terrace Suite).
Guest must present documentation for current vaccinations.
A fee of $50.00 + tax (per pet per night) will be charged and collect by the hotel at check-in.
(Subject to change)
- No Show Penalty: 100% of balance due Applies: Sunday - Saturday 01Jan15 - 31Dec50
Ratings & reviews
TripAdvisor traveler rating1869 reviews
Young vibe, great location
Young vibe to the hotel overall. Staff friendly and lots of places to eat and drink. Nice pool areas and easy access to the Uber pick up point in the garage. Also stayed at the Venetian and preferred the Cosmopolitan. Similar vibe to somewhere like Ushuaia in Ibiza. Odd system of taking $50 dollars from your account and then saying you have $50 hotel credit. Not sure if you can refuse to pay this as didn’t look into it in detail but it does seem like a dodgy way of making you use the hotel restaurants and bars whether you want to or not!
WAS a great property
This property is degrading quickly. Reminds me of an old college spring break hotel. Carpets stained with cigarette burns, sewer gas coming from shower drains, pounding music from pool parties until 4am. Wine cooler is loud. Arrogant staff. When I checked in and asked for an upgrade, the staff member turned his back to me and covered the phone. He definitely didn’t want me to hear what he was saying. Definitely an anti Marriott Member vibe. Turned out, I’m right above (2401 Chelsea tower) the party pool that goes til 4am. Clubs super packed. This is a paradise for college kids who want to party til dawn. Not a place for families or sophisticated traveler. I did host a dinner for eight at Blue Ribbon restaurant that was very good (especially the bone marrow).
Another Great Trip to Vegas at the Cosmo!
Always enjoy staying at Cosmo!! Friendly staff, clean and spacious rooms, and plenty of fun things to see and do….. whether it’s hitting the secret pizza place for a late snack, or using the Barber Shop’s janitor door to access a fun little hidden bar, we always have a great time at Cosmo. It’s pricey, but consistently a great experience, and the views on the fountain side are post card worthy!
Vacation June 2022
The hotel was quite nice for being on the strip. The JW Marriott was much nicer but it was not on the strip. Housekeeping was excellent. The gym was outstanding. My big complaint came around the pool. The pool was nice but there was no shade. We were offered a shady spot for $300 dollars which included Food and Drinks.Unfortunately, my wife became dehydrated (she needed more water). The restaurants in the hotel were all very good. Henry's for Breakfast and STK for dinner. people were very friendly and we had a view where we were able to look at the water fall from the Belogilo.
Epitome of Type of Room and Location
This hotel is based on getting the right room. If you get any balcony room or higher (corner suite and above) you are going to go crazy. I normal, non-balcony room you might as well stay anywhere on the stip. We had a corner suite recently and the experience was awesome. Big room, bar area, full balcony with sitting area and good view of the strip makes this memorable. Check-in is challenging since its usually super busy. Not unusual to spend 30-minutes+ at check-in even as a "VIP". Rooms are well appointed with great furniture and amenities. Our suite had a cool leather-like chaise lounge that pulled double duty! The hotel, casino and amenities are the best on the strip. The pools alone are worth most of the cost during pool season - they hop at all times. Great restaurants and the casino is one of the best on the strip. Saw a couple of shows (Lady A most recent) and the event center needs some work regarding security and getting people into the shows. The location on strip is a positive - easy to head any where within reasonable distance.