CALIBRATION & SET UP

Welcome to your HUB 2

Setup the HUB 2 in less than 15 minutes

Step 1

Position the Pad on your mattress and secure the elastic straps around the corners.

Step 2

Cover the Pad with your usual bedsheet or bedspread.

Step 3

Ensure the connection tubes are free of tangles and are not twisted.

Step 4

Place the unit beside the bed, leaving at least 15 cm of clearance on all sides to allow for proper air circulation.

Step 5

Connect the tubes to the unit by matching the colors on the tubes to the corresponding connectors on the device. IMPORTANT: Ensure the tubes are not kinked once connected.

Step 6

Remove the cap from the Unit, slowly fill the unit's reservoir with distilled water, and plug the power cord into a grounded electrical outlet.

Step 7

Press the power button to turn the unit on.

HUB 2 | Smart Water-Cooled Mattress Pad - OAK SLEEP

Step 8

The pump will begin to push water into the Pad. When the reservoir empties, an alarm will sound and the E3 code will appear. When this happens, refill the reservoir. Repeat this procedure until the alarm stops and the E3 code disappears.

Getting Started

Calibration

Great sleep starts with temperature. Your body needs to cool slightly to fall asleep and stay asleep. The HUB helps you control your mattress surface temperature, one of the biggest factors behind quality deep and REM sleep.

Start With Auto‑Sleep Cooling “0”
Step 1

1. Start With Auto‑Sleep Cooling “0”

“0” is your baseline.
Use it for 2–5 nights to let your body settle.

Auto‑Sleep Cooling “0” intelligently makes micro‑adjustments through the night to support your natural Deep Sleep and REM cycles.
It adapts as your core temperature rises and falls.

Adjust Based on How You Wake
Step 2

2. Adjust Based on How You Wake

Your body is the feedback loop.

  • Wake up warm → go 1 step cooler
  • Wake up cold → go 1 step warmer
  • Wake up neutral → stay where you are

Make one change at a time, then test for 2–3 nights.

If You Wake
Step 3

3. If You Wake

If You Wake at 3am

This is usually overheating.
Drop your setting 1 point cooler and check your quilt.

If You Wake at 6am

Your body naturally warms toward morning.
Lower your setting 1 point and keep the room cool.

If You Wake Up Warm

Lower your setting 1 point and aim for a cooler room.

Science Note: Keep the Sleep Surface & Room Cool
Step 4

4. Science Note: Keep the Sleep Surface & Room Cool

Ideal Room Temperature

Most people sleep best when the room is: 15–20°C (sweet spot: 18–19°C)

A cooler room helps your body stay asleep and gives the HUB more room to work.

The Surface

Sleep science shows the sleep surface should stay within a cool, stable range.
Heating the mattress surface above ~25°C is generally not recommended, as it reduces deep sleep and increases wake‑ups.

If you need more warmth:

  • Increase room temperature, or
  • Use a warmer quilt, rather than raising the mattress temperature above this range.
HUB 2 | Smart Water-Cooled Mattress Pad - OAK SLEEP
Step 5

5. Use Wearables to Fine‑Tune

Wearables help you see how your body responds over time.

How to use them:

  1. Run “0” for 3–7 nights → get baseline averages
  2. Make a 1‑step change
  3. Hold for 3–7 nights
  4. Compare averages:
  • Deep sleep
  • REM
  • Wake‑ups
  • Resting heart rate
  • HRV stability

If your averages improve → keep the new setting.
If they drop → reverse the change.

Your goal:
fewer wake‑ups + more deep/REM + stable heart rate.

If Auto‑Sleep Doesn’t Cooperate
Step 6

6. If Auto‑Sleep Doesn’t Cooperate

Less than 5% of customers find Auto‑Sleep doesn’t match their sleep patterns.

If this happens:

  • Switch to Cooling (fixed temperature)
  • Start at a comfortable cool setting
  • Adjust 1 step at a time over several nights

Fixed cooling gives you full manual control and can be a better fit for certain sleepers.

A FEW SIMPLE TIPS FOR YOU

Quick Tips

The Principles Behind Mattress Surface Temperature

The ideal mattress surface temperature for quality sleep is 18–20°C, year‑round.

The Auto‑Sleep Cooling “0” setting is the best starting point for most people.

Everyone sleeps differently - adjust slightly warmer or cooler based on comfort or wearable feedback.

We recommend using cooling mode only, even in winter.

Adjust your room temperature and quilt thickness to match the season while keeping the bed surface cool.

The Functions

Use the function button to cycle modes

Heating

  • Turbo Heat (Runs for 60 minutes)
  • Standard Dual-Zone
  • Auto-Sleep

Cooling

  • Turbo Cool (Runs for 60 minutes)
  • Standard Dual-Zone
  • Auto-Sleep

Dual-Zone Temperature

Dual‑Zone allows up to 10°C difference between the left and right sides of the bed.

The display shows the current water temperature.

When you tap to adjust, you’ll see the target temperatures so you know exactly where each side is targeting.

Auto-Sleep

Auto-Sleep will intelligently adjust the pad temperature to support your deep and REM sleep.

Start with Cooling mode on “0 | 0” — this is the ideal baseline for most people.

Everyone’s sleep temperature is different. Adjust 1 point per night until it feels right.

  • Wake up too cold → Increase by +1
  • Wake up too warm → Decrease by –1
  • Wake up too early → Decrease by –1

If you use a wearable, test each setting for one full week and compare your averages.

  • Try 0 for a week
  • Then –1 for a week
  • Choose the setting that gives you the best sleep outcomes

For accurate calibration, aim for a 16–20°C room temperature.

Once you find your ideal setting, you’ll rarely need to change it.

  • If the bed feels too warm, cool your room.
  • If it feels too cool, use external heating.

Maintain a 16–22°C room temperature for the best overall results.

Cooling

Allow 30–60 minutes for the HUB to cool the water in the pad.

Pre‑Cool: With no one in the bed, the HUB can cool up to 8°C below room temperature

Sleep‑Cool: Each person adds body heat. Expect the displayed temperature to rise 2°C per person as the system absorbs your body heat.

For best cooling performance, keep your bedroom under 22°C (maximum 24°C).

Heating

The HUB 2 can heat the water in the pad up to 55°C.

  • For most sleepers, a 25–35°C range is ideal for comfort.
  • Temperatures above 35°C should be used only for recovery or therapeutic warmth.

Auto-Sleep

  • Start at setting 0, then adjust up or down by 1 point to find your ideal warmth.
  • If you naturally sleep hot, start at –4 in heating mode — or simply use cooling year‑round if preferred.
The science of cooler sleep

Your body can't sleep if it's too warm.

To drift off, your core body temperature needs to drop by around 0.5–1.5°C. It’s not just a preference, it’s biology. When your environment is too warm, your body struggles with this process, leaving you awake, restless, and unsettled.

HUB 2 creates the ideal thermal environment your body needs, cooling your sleep surface to the precise range where deep, restorative sleep happens.

Reserve Your HUB 2 →See the science
Optimal sleep temperature range
Too cold
12°C Ideal zone
15–19°C ✓ Too warm
24°C+

HUB 2 keeps your sleep surface within this exact range — automatically, all night.

🌡️

1–3°C

Required core body temp drop to initiate sleep onset

⏱️

Up to 32%

Faster sleep onset when skin is actively cooled at sleep time

🌊

20M+

Hours of sleep data used to calibrate HUB 2's temperature intelligence