SIMS how to inflate them?

[WhereTheWildThingsWere]

When they don't actually self inflate?

Granted they are only cheapies from lidl, but when the bumf says they will inflate to 5cm, then 5cm is what I expect.

Dp and I have spent the whole of the Apprentice poking them and willing them to get thicker, but they are 2cm at best, except a small area around the valve where we have given them a bit of a blow.

Are they just shit, should I take them back?

I have always needed to blow up my SIMs, I think it's normal for a new one to need a bit of help since they'll have been rolled up a long time in the shop.

But when we are blowing them, they are just blowing up like balloons with a solid wedge of foam down the center?

Am I doing something wrong?

i think you have to leave them out for quite a while that first time.

When they are brand new, they take a bit of time to fully "relax" - bear in mind they willhave been sealed up for yonks before you bought them. Leave them laid out with the valves open for a couple of days , pop them under the sofa if they are in the way Then give them a couple of puffs - they should be fine.