Nurse Sarah Jeffries

Nurse Sarah Jeffries I’m Sarah Jeffries | Registered Nurse (MSN), Sleep Coach & Educator. Helping women, parents & professionals fix their sleep naturally.

Originally from the UK 🇬🇧 | Based in LA 🇺🇸
For Your Free Sleep Guid Send a Message With the Words “Better Sleep”

Most people still think sleep is just “rest.”It’s actually one of the most powerful biological repair systems in the hum...
05/11/2026

Most people still think sleep is just “rest.”
It’s actually one of the most powerful biological repair systems in the human body.

Poor sleep affects your brain, hormones, immune system, metabolism, recovery, mood, and even the way other people perceive you.

Follow for more science-based sleep tips.

Most people think they have a sleep problem.A lot of the time, it’s actually a habit problem.The crazy part?Nobody teach...
05/10/2026

Most people think they have a sleep problem.
A lot of the time, it’s actually a habit problem.

The crazy part?
Nobody teaches this stuff. Not in school. Not even in most health classes.

If this hit, comment SLEEP below 👇
Follow for more science-backed sleep tips.

05/10/2026

⬇️ Read this! ⬇️

Sleeping longer does NOT mean you’re recovering.

I believed this for years.

As an RN, I now teach the opposite.

Here’s what’s actually going on:

Your body cycles through light sleep, deep sleep, and REM.

Deep sleep is where the real repair happens.

HGH release. Tissue repair. Immune function.

If your nervous system never downshifts,

you spend hours in light sleep

and barely touch the deep stages.

So you sleep 8, 9, even 10 hours

and wake up feeling like you pulled a 12 hour shift.

Here’s what wrecks your deep sleep cycles:

1. Alcohol before bed... even one drink blocks your REM and spikes your heart rate all night

2. Screens until lights out... melatonin is blocked before your head hits the pillow

3. Caffeine after 2pm... still sitting on those adenosine receptors at midnight

4. A nervous system stuck in overdrive... cortisol doesn’t care that you’re lying down

Your body doesn’t count hours.

It counts quality cycles.

A wired nervous system sleeping 9 hours

will lose to a calm one sleeping 7.

Every. Single. Time.

Comment SLEEP BETTER below 👇 to learn the actual science of sleep + get access to my free community for beating burnout and sleeping deep.

Follow for more RN-led sleep science

One bad night doesn’t ruin your health.The panic, caffeine and “trying to fix it” usually does.Your body already knows h...
05/09/2026

One bad night doesn’t ruin your health.

The panic, caffeine and “trying to fix it” usually does.

Your body already knows how to recover.

If this hit, comment SLEEP below to join our free community👇

Follow for more science-backed sleep tips.

04/22/2026

Gym Bros Vs. Female Anatomy 😱

Follow me for more ->

04/20/2026

Anyone still va**ng?

Link in bio for the recent video I made on the debate

“Which is safer? Smoking or va**ng?”

**ng

Address

1654 Lincoln Boulevard
Santa Monica, CA
90404

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