California King Mattresses

Side sleepers usually need pressure relief, back sleepers need balanced support, and stomach sleepers often need a firmer feel.

Timing depends on the product and your location. Our team can confirm the best local delivery options before checkout.

All sales are final; Sleep City does not issue refunds. Qualifying mattresses delivered within our regular local delivery areas may receive one comfort exchange within 120 nights after a required 30-night break-in period, with a $249 exchange fee. Mattresses must be clean, sanitary, undamaged, and retain all original law tags. Special orders, adjustable bases, massage chairs, furniture, frames, opened accessories, clearance, outlet, and floor-model merchandise are excluded. Manufacturer defects are handled separately under the applicable warranty. See our Returns & Exchanges policy for full details.

Most mattresses include a manufacturer warranty. Warranty length and coverage depend on the brand and model.