Take your time under the big sky. Book a room at the El Cosmico for three or more nights and receive up to a 20% discount. Save 15% when you stay 3 nights or more, Sunday through Thursday Save 20% when you stay 4 nights or more Select STAY A WHILE when reserving online or call (432) 729-1950 (inside Texas) or (877) 822-1950 (outside Texas) to make your reservation over the phone. Reservations cannot be modified or canceled. Promo is subject to blackout dates and availability. The promotion is not available to groups and rates are non-commissionable. The promotion cannot be combined with any other offer or applied to existing bookings.