28-Day Program · Evidence-Based · For High Performers Who've Tried Everything
Every night you don't fix this, you're losing 90 minutes of restorative slow-wave sleep — the kind your Oura ring can see but your current protocols can't fix. This is what they missed.
Deep Sleep in 28 Days
Complete 28-day program + all bonuses
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Why You're Still Exhausted
You think you have a mood problem. A focus problem. A weight problem. A relationship problem. Research from UC Berkeley, Yale, and Stanford shows those aren't separate issues — they're downstream of one thing. After a single bad night, your emotional reactivity amplifies by 60%, your memory consolidation drops 40%, and your immune system loses 70% of its cancer-fighting capacity. After 17 hours awake, your cognitive performance equals two standard drinks.
You're already doing the right things — no screens before bed, magnesium supplements, a consistent bedtime. But you're still waking at 3am. Still dragging through mornings. Still running on caffeine by 2pm. The problem isn't your habits. It's your timing. Sleep quality is governed by your circadian system — a precise 24-hour biological clock that controls melatonin release, core body temperature, cortisol, and memory consolidation. When that clock is misaligned, no amount of willpower fixes it.
Blue light exposure after dark suppresses melatonin for 2–3 hours. Morning light — the most powerful circadian anchor — is often missed entirely.
Core body temperature must fall ~1°C to initiate deep sleep. Most people's bedrooms are 3–5°C too warm for this transition to happen smoothly.
Late meals activate digestive thermogenesis just as you need your core temperature to fall. Eating within 3 hours of sleep measurably fragments sleep architecture.
Weekend lie-ins create "social jetlag" — a weekly circadian disruption equivalent to flying 1–2 time zones east every Monday morning.
The Programme
Deep Sleep in 28 Days is a structured 28-day protocol that works sequentially — not as a grab-bag of tips, but as a progressive system that builds each layer of your sleep architecture one week at a time.
Each daily protocol takes 15–20 minutes to read and implement. The structural changes (light anchors, temperature setup, meal timing) are one-time adjustments. Everything else is habit installation — calibrated to the pace your nervous system actually adapts.
Establish your three circadian anchors: morning light (within 30 minutes of waking), fixed wake time (±15 minutes, 7 days), and a defined eating window. These three inputs do more for your sleep timing than any supplement.
Optimise your bedroom temperature (18–20°C), install the light environment protocol (amber lights post-7pm, blackout by 9pm), and begin the temperature drop sequence. Most students notice improved sleep quality by Day 10–12.
Layer in the Korean saenghwal (생활) rituals — a 45-minute pre-sleep wind-down sequence built around jjimjilbang-inspired warmth, chamomile and date tea, and the Hanok stillness practice. Activates parasympathetic signalling that Western wind-downs rarely achieve.
Fine-tune your individual circadian profile (early/mid/late chronotype adjustments), integrate the glymphatic clearing protocol (position, hydration timing, nasal breathing), and build the maintenance system that keeps your reset stable long-term.
The Science
Deep Sleep in 28 Days isn't built from influencer advice or generic wellness content. Each protocol is drawn from published research — primarily chronobiology, sleep neuroscience, and thermoregulation studies. Here's what the evidence says about the core mechanisms:
Morning light exposure (5,000–10,000 lux, first 30 min) is the most powerful input to the suprachiasmatic nucleus — the master circadian pacemaker.
Czeisler et al., 1989; Khalsa et al., 2003
A core temperature drop of approximately 1°C is required to initiate slow-wave sleep. Bedroom temperature of 18–20°C accelerates this drop reliably.
Lack et al., 2008; Kräuchi et al., 1999
The brain's glymphatic system — which clears metabolic waste including β-amyloid — is up to 60% more active during slow-wave sleep than waking.
Xie et al., Science 2013
Everything Included
Deep Sleep in 28 Days includes everything you need to run the full 28 days — no additional purchases required.
Day-by-day action guide. Each entry: what to do, why it works, common obstacles. 80 pages, formatted for daily use.
Step-by-step light optimisation: morning anchor, midday maintenance, evening dim-down, blackout setup. Includes budget-friendly product guide.
Bedroom audit checklist, thermoregulation sequence, cooling methods for any budget. Includes the pre-sleep warm-then-cool protocol.
Meal timing mapped to your circadian window. Includes Korean-inspired evening foods (warm, easily digestible, traditional sleep-supportive herbs).
The complete saenghwal wind-down sequence: warmth, tea protocol, Hanok stillness practice, and a digital-to-analog transition ritual.
Wearable-optional tracker to assess your deep sleep, REM balance, and recovery quality each morning. Tracks across all 28 days.
Structured weekly review: what's working, what to adjust, chronotype calibration check-in. Keeps you on track through Week 4.
Printable or phone-screensaver habit cards for your three anchors — visible reminders for the first two weeks when new habits need support.
Is This Right for You?
Student Stories
"I've done every sleep programme on the market. Mathew Walker's book, CBT-i, sleep restriction, all of it. Deep Sleep in 28 Days is the only one that actually addressed the environment systematically. Week 2 was the week everything changed — the temperature protocol specifically. I was sceptical about the Korean rituals but they've become the part I look forward to most."
"I was waking at 3am every single night for two years. Doctors said it was stress. It was my bedroom temperature — 23°C. Brought it to 19°C, added the amber light protocol, and by Day 12 the 3am wakes stopped. I cried the first morning I slept through."
"The morning light protocol was the game-changer for me. I thought I was a night person. Turns out I was just chronically under-stimulated in the morning. After 10 days of consistent morning sun, I was naturally tired by 9:30pm. That had never happened in my adult life."
"I'm Korean-Australian and the saenghwal module felt like coming home. My halmoni used to do these exact rituals — the warm tea, the slow-down, the bath. I didn't realise there was science behind why they worked. Lila bridges that gap beautifully."
"My afternoon crash was so bad I was napping at my desk. Fixed it. Turns out post-lunch crashes are largely circadian, not diet. Anchoring my wake time and getting morning light wiped it out within two weeks. I feel like I have a second half to my day again."
"Worth it for the eating window guidance alone. I was eating dinner at 9pm, watching Netflix until midnight. Moved dinner to 7pm, moved bedtime to 10:30pm. Sleep quality (measured on my Oura) went from 72 avg to 84 avg by Week 3."
"As a sceptic who's read the actual papers (I'm a PhD student in neuroscience), I was impressed. Every claim has a citation. Every protocol has a mechanism. Lila isn't selling wellness mythology — she's translating real science into a usable daily system. Rare."
Do the first two weeks of the protocol as written. If you're not sleeping better — falling asleep faster, staying asleep longer, waking less groggy — I'll refund 100% of your purchase, no questions asked. The risk is entirely mine. You get 28 days of evidence-based, systemised sleep work for $97 or your money back.
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