Survey reveals average time couples are comfortable crying, being naked, and using the bathroom in front of each other

If you see this one morning, you're probably at least six months into the relationship. (iStock)

It takes a new couple seven and a half months for a relationship to reach "the comfort zone," according to new research.

A new study of 2,000 coupled-up Americans found that the biggest signs you’ve entered the comfort zone are allowing your significant other to take care of you when you’re sick, not wearing make-up and not shaving your legs or face.

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According to the research, it takes an average of seven months for couples to have their first talk about marriage/kids and about six months to introduce a significant other to their parents.

Milestones such as crying in front of your partner, as well as feeling comfortable enough to snore while sleeping next to your partner, also proved to be big tells that your relationship has reached that next level.

The study, conducted by OnePoll on behalf of Mattress Firm, also revealed it takes nearly five months before they’re comfortable showering at the other’s place, nearly six months to get to the point where sitting in silence isn’t awkward, and nearly seven months to feel comfortable using the bathroom with the door open.

Surprisingly, the research also found that it takes eight months to share a Netflix/Hulu account, which is, amusingly, three months longer than it takes the average couple to shower at their significant other’s house.

Try their first pet's name. (iStock)

SURVEY FINDS BEST TIME TO TAKE A COUPLE'S VACATION

The results revealed that four in five people say they prefer to sleep in bed with their partner and it takes nearly five months before couples are comfortable doing so. According to the results, conversation in the bedroom may be a lost art, as only 39 percent of couples say they engage in pillow talk after sex. And despite annoying habits like snoring and fidgeting, more than half of the couples surveyed report their sleep quality actually improves when sleeping with their partner.

“If you snore, gravity is not your friend, but a slight elevation to your neck and head alleviates some of gravity’s pull and allows for a more open airway,” said Dr. Sujay Kansagra, pediatric neurologist and Mattress Firm sleep health consultant.

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Still, most people are happier once the relationship hits the comfort zone, as 65 percent of couples sleep in the same bed every night and 70 percent of respondents say they don’t miss sleeping alone.

Results: How long does it take, on average, to experience the following 'firsts'?

• Sex: 4 months, 17 days
• Sleep in same bed: 4 months, 21 days
• Shower at the other’s place: 4 months, 29 days
• Cry in front of partner: 5 months, 24 days
• Sit in silence without it being awkward: 5 months, 27 days
• Talk about your/her period: 6 months, 13 days
• Be naked around the house: 6 months, 18 days
• Share a deep secret: 6 months, 19 days
• Let your partner take care/see you when you’re sick: 6 months, 21 days
• Use the bathroom with the door open: 6 months, 24 days
• Pass gas in front of partner: 6 months, 25 days
• Talk about marriage/kids: 7 months, 1 day
• Go on vacation together: 7 months, 7 days
• Share a password: 7 months, 17 days
• Share a Netflix/Hulu account: 7 months, 24 days