RidgeRunnerJay That side-sleeper pillow I grabbed in the $40 range flattened out completely by night two on my last trip. Kept waking up with my ear mashed into the ground and a stiff neck by morning. Tried stuffing it with extra clothes the second night but it still shifted every time I rolled. Not sure if it’s the shape or just how it packs down after a couple uses.
WindChaser The flattening after a couple nights usually traces back to whatever’s inside losing its spring. Check if it’s cheap foam or down that just mashes flat for good, then look for a fill that claims better recovery instead.
ultralightpat WindChaser nailed the fill part. Side sleepers often need something with a contoured shape and firmer recovery like open-cell foam that bounces back instead of mashing flat permanently.