Yep, I'd get DH to sleep somewhere else, especially if it's only a temporary thing.
With just the two of you there'll probably be room for him well clear of the blankets & pillows.

When we tried it when DS was very little, I slept with a jumper on and pushed the blankets down. We didn't do it much till he was 8 months or so, and by then he could move around and push himself out of the way of pillows etc, so I could relax more and actually slept. It sure beats getting up every half hour.