Support Very good Cooling Very good Pressure relief Very good From our customer data • 61,828 UK sleepers Most people shopping for a medium-firm mattress come to us with back pain. 77% of medium-firmness shoppers in our data report back pain as a key concern. The Pocket 1000's medium-firm tension (7/10) is designed to support the spine without sacrificing the pressure relief side and back sleepers need. Like all REM-Fit hybrid mattresses, the open-cell memory foam layer actively circulates air through the night - so it stays breathable even for warmer sleepers. See full data ▼ 84% want temperature regulation 72% want motion isolation 66% ...