Absolutely love this mattress. Was very happy to receive this so quickly. Decided to treat myself to a new mattress and so glad I did as my old one even had a topper on it , it was so uncomfortable. I left the Dormeo mattress for 24 hours before putting it on the bed base and it's deeper than I would have imagined. Very comfortable. Would recommend.  I have a cheap bed from Argos with slats that are quite far apart so not ideal for this mattress. I bought a double bed board from an online retailer for my bed to make it more sturdy for the mattress to sit on. Apparently though if you have slats that are close together, they will be fine.