They’re basically suggesting that you need something to jab you in the back if you roll onto your back. So, by sewing a tennis ball to the back of your nightshirt, your back will hit it if you try to roll onto your back, and you won’t stay there because it would be uncomfortable to sleep on a hard lump.
I don’t think I understand the tennis ball thing
They’re basically suggesting that you need something to jab you in the back if you roll onto your back. So, by sewing a tennis ball to the back of your nightshirt, your back will hit it if you try to roll onto your back, and you won’t stay there because it would be uncomfortable to sleep on a hard lump.
I’d just wake up without my shirt