Whoever said couples shouldn’t go to bed angry was an idiot. No matter what you’re fighting over, staying awake longer and becoming more aggravated will just fan the flames, spike your blood pressure — and cut into your beauty sleep.

Okay, fine, maybe that’s not true for everyone. But, unfortunately, the bedroom is a source of contention for many otherwise compatible mates. Lines are drawn over lights, devices, sex and spawn, causing couples to lose an average of 90 minutes of sleep to bedtime arguments every week.

The only way to win sleep-deprived squabbles is to avoid them. So consider this your evening reading material for tonight. Then prepare your peace treaty.

1: Snoring

Reactions to the Arkansas woman who stabbed her sleeping husband four times over his bed-bellowing should serve as a marriage litmus test. Singles and newlyweds are likely appalled. Longtime couples yearning for just one good night of uninterrupted rest might say four times was excessive — one poke in the ribs might’ve sufficed.

The aggravation of lying wide awake next to someone who’s snoring (and fast asleep) can lead to idle fantasies of somnolent murder. However, there are other options that won’t cause bloodshed. Nasal strips, for instance, can dial down the drone; gargling with a non-alcoholic mouthwash prior to bed can flatten out the irritatingly arrhythmic rise and fall of snoring. And saline spray may help reduce inflammation in swollen airways. The silent party can also try a set of earplugs.

2: Sex

When the starting pistol fires for one partner but not the other, you both end up stalled at the starting gate. Rather than a tangle of sweaty limbs, the night turns into a solo run on a course of discomfort and rejection.

Emotional blackmail, pleading and bullying rarely lead to satisfying carnal encounters. Relationship experts advise trying to communicate your feelings to your partner without being accusatory, and giving listening a try. If your partner says not tonight, dear, take it as a one-time thing. Sex is about two people connecting in a long-term commitment. If your needs are more about relieving tension, calming emotion and relaxing for sleep, take care of them yourself.

3: Electronics

Well, someone has to watch Anderson Cooper 360 to find out what’s going on in the world. And all those ebooks won’t read themselves. Oh and it’s been a while since you told your Instagram followers how #blessed you feel. And while you’re on it, better shoot a few emails just, you know, so you’re ready in the morning.

Nothing keeps a bedmate awake quite like the pinging and flashing from electronic devices. The obvious solution: Clean up your sleep hygiene and rid the room of all devices. Or set an electronics curfew and power down the batteries when it’s bedtime.

But obvious doesn’t always equal easy. Whichever partner is seeking quiet could also try a sleep mask. Or the media-obsessed person can get a pair of headphones. Or just kick the offending partner out of bed and be done with it.

Even if your bedroom is completely device-free, reading before bed can create problems if the light keeps your partner awake. Be willing to compromise (one night you read, next night you don’t) or buy a flashlight.

4: Co-Sleeping

Any parent who’s shared their bed with a small child knows that it’s the cutest form of hell imaginable. They’ll squirm and want stuff half the night. And then when they’re finally still and quiet, you’ll wonder why they’re still and quiet — is something wrong?

For some parents, the warm, fuzzy notion of snuggling under the covers with a chubby little butterball or an adorable scamp is hard to resist. If that’s true of your spouse, you’ll find yourself negotiating on two fronts: with each other and your kid.

At Van Winkle’s, we’ve written on the subject repeatedly. But there’s no convincing everyone. You decide what works for your family.

5: Room Temperature

The Better Sleep Council, an arm of the International Sleep Products Association trade group, surveyed couples about sleep problems and found that bedroom temperature was their most common complaint (43 percent) followed by tossing and turning (40 percent). When one person is overheated and kicking off the covers while the other is shivering from the cranked-up air conditioning, both are unhappy.

Robert Oexman, a chiropractor who treats patients with sleep problems, told The Wall Street Journal he advises couples with temperature conflicts to use separate sheets and blankets. His research found this helped reduce sleep disturbances by 79 percent.

The only battle left will be choosing the sheets. Because of course, behind every beautiful room is a domestic squabble or drama.