If you decide at some point during the day that you having a nap is necessary to the emotional and physical well-being of your entire family, I recommend that you hide your phone.
Otherwise, you may wake up to discover that your children have called half of the contacts in your phone including your entire family and in-laws, and have informed all of them that you have been sleeping for 45 minutes and "will sleep prolly for 70 more minutes." They will also have mentioned a few of the naughty activities they are engaging in including shoveling handfuls of salt into their mouths, among other things.
I'm just saying: take your phone with you.
Sleep on it.