Promotions and offers
Additional 5% discount only when booking online!
30 June 2026
Why don't you stay? Book from 2 nights and get a night as a gift!
30 June 2026
Quick check-in using a digital ID
Gastronomic trip to Russia in Cosmos hotels
Family rate - children can relax for free!
31 December 2026
Premium morning briefing at Cosmos Hotel Group
Order room service breakfast 24/7
31 December 2026
Early Booking at Cosmos Adler Hotel
Breakfast from a nutritionist at Cosmos Collection hotels
Personal offer from the Nebula SPA complex for birthday celebrants
31 December 2026
Family accommodation 2+2 - children stay free of charge!
"Why not stay a little longer? Book 3 nights and get a night for free!"
30 June 2026
Additional 5% discount – only when booking on the website
30 June 2026
Family Journey with Neppy
31 December 2026
Early booking in Cosmos Petrozavodsk
22 December 2026
The Perfect Space for Your Celebration at Cosmos Selection Saint-Petersburg Italyanskaya
LONG STAY AT COSMOS PETROZAVODSK
30 December 2026
Additional 5% discount
30 June 2026
Family tariff
Дополнительная скидка 5%
31 July 2026