I don't really see the bald spot you're taking about, but I wouldn't sleep with those snap clips in. I imagine if you roll over or move in your sleep at all they could pull and rip it hairs. Instead of clips, what about doing sort of lace rope braids with the front part of your hair. Just try not to separate your curls too much when you do it (keep them clumped) - sometimes I do this to preserve curls over night.
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