How do you plan to not get robbed (backpack and/or bike) while you’re asleep? I suppose you will lock your bike somewhere while you sleep, which is probably? reasonably secure for one night at a time. The best way I can think of to prevent backpack theft is to physically attach it to yourself in such a way that moving it will wake you, but even that doesn’t necessarily prevent someone from opening and rooting through it.
How do you plan to not get robbed (backpack and/or bike) while you’re asleep? I suppose you will lock your bike somewhere while you sleep, which is probably? reasonably secure for one night at a time. The best way I can think of to prevent backpack theft is to physically attach it to yourself in such a way that moving it will wake you, but even that doesn’t necessarily prevent someone from opening and rooting through it.