hello,
I usually clip it to the front of my pants, this is wear it usually stays most of the time. I usually find the clip on the pump quite sturdy with staying on things. If I wear jammies or a nightie then it gets clipped on the front somewhere comfy. If I don't want to wear anything at all then I let it roam free. I took me about 2 years where I had the confidence to do that though, but now it's just a bit of me, I automatically just grab it when I get up out of bed and it's not clipped to anything. I've had over 7 years attached to it you have to forget about it several hundred times before it becomes automatic to pick it up half a sleep. Some people like to tuck it under the pillow, or clip it onto a bit of tubi grip on their arm or leg. I have a soft belt with some Velcro on that goes around my waste that is meant for sleeping at night. I would say just experiment and find what ever feels right for you. It takes a bit of getting used to having something attached to you 24/7 but I don't even notice now I treat it as a part of me like my foot or something.