My boyfriend must be trying to prepare me for motherhood. I can't go three hours without him waking…

My boyfriend must be trying to prepare me for motherhood. I can't go three hours without him waking me up in his sleep. Edge of the bed, elbows jabbing me, talking in his sleep. I'm exhausted. Full size beds are not made for two people. Especially not when one is pregnant.

Why are mattresses so expensive? :(