I had one years ago, no leaking. I also do not allow my pets in the bedroom, much less in the bed, so that's a worry I don't have.
To clarify, the sheets were wet due to a leaking mattress
This was always discovered when she would typically got to bed before me. I was normally trying to relax at this time of the day and after 2 or 3 instances I was DONE!!! What is one supposed to do at 11 PM with a leaking mattress other than start the draining process. Relax? Forget that. Then you had to buy a new one, fill it up and wait for the flippin thing to get warm. NADA, Done