Just a note FI you aren't hibernating it longer than its supposed to be there, pg is 38- 42 weeks long, you just have a different cycle to some!!!!!
Anyway on the subject of changetables I had one the bath under it, and as someone else said its impossible, I ended up using the big bath, or the sink, the changetable is great, but I only use it til they can roll over, and then I use the bed or the floor ( depending on my back!!)