I just wanted to make you aware of something when choosing a new mattress based on my recent experience. We bought a new king size 'deep mattress' a few months ago (was pregnant with dodgy back). There are no straps to grab to lift it up. It is really heavy. I am not a weakling, but my DH has to put the topper and fitted sheet on the mattress when we are changing the bed!
It is lovely and comfortable but I never thought about how I would make the bed when shopping for it!