My ds is 4 months and is already wriggling out of his bouncer (even with the seatbelt on!). It's mostly ok because I'm downstairs but occasionally I have to be upstairs to take my dd for naps. Getting to the point where I just don't trusts him in bouncer or on play mat for 2 minutes so need to get a play pen. Can anyone recommend either small play pens or ones that fold up neatly and easily. There's not a lot of room in our living room so need something as compact as possible. Thanks x