Frequently Asked Questions
What is the HUB?
The HUB 2 is your intelligent sleep partner.
Simply place the advanced thermal pad beneath your sheets. The HUB quietly circulates chilled or heated water through your bed surface, optimizing your temperature to help you fall asleep faster and achieve deeper, restorative rest.
Does it fit my Mattress?
Universal Mattress Compatibility.
The thin thermal pad fits effortlessly beneath your sheets, just like a topper. It is fully compatible with all mattress depths, from 15 cm to 40 cm
Does it change the softness of the mattress?
Designed for Seamless Comfort.
The thermal pad makes a negligible difference to the feel of your mattress. Most users note a slight firming effect, generally reporting the surface feels around 5% firmer.
The tubes can be felt under hand, however upon laying down, 99%+ of customers advise they cannot feel the tubing.
How is this better than an A/C or Heater?
It's different. Not a replacement.
The HUB 2 Advantage.
The HUB 2 is engineered to achieve maximum sleep quality. It uses sensing intelligence to track your body and room temperature in real-time, actively and intelligently supporting your natural sleep cycle for deeper rest.
Unlike air-based systems (which only dry your skin or move stale air), The HUB 2 uses direct, water-based circulation for heating and cooling. This direct contact with the bed's ecosystem gives you far better and more precise control than any AC or heater. Best of all, it uses up to 70% less power than traditional temperature control methods.
We do not recommend the HUB as a full replacement for air conditioning. It should be used in conjunction AC with on warmer nights.
Our Dual-Zone capability ensures both you and your partner can select your own personalised temperature. Up to 10 degrees of difference.
How is the HUB 2 different to a 'cooling mattress'?
The difference is simple: passive cooling versus active, intelligent temperature control.
1. Cooling Mattresses (Passive)
A typical "cooling mattress" or a foam bed with "cooling gel" offers only passive cooling.
- They rely on materials like copper, phase-change materials, or gel-infused foams to absorb and wick away the heat you generate.
- They can feel cool for the first hour, but once they absorb your body heat, they become heat reservoirs and stop cooling.
- They cannot cool below room temperature and cannot actively heat your surface—they are limited by the air around you.
2. The HUB 2 (Active & Intelligent)
The HUB 2 is a dedicated thermal engine that provides active cooling and heating using a water-based system.
- Active Control: It constantly circulates chilled or heated water, from a refreshing 12°C all the way up to 55°C.
- Intelligent System: It actively senses your body temperature and the room environment to intelligently support your natural sleep cycle, maximizing your recovery.
- Dual-Zone Personalization: You and your partner can set two temperatures at the same time, which is impossible with any passive cooling mattress.
In short, a cooling mattress reacts to your heat; The HUB 2 controls your heat.
Why not a heated blanket?
The HUB 2 Advantage:
Precision vs. Overheating: Heated blankets only warm and can dangerously overheat, waking you up. The HUB 2 actively cools and heats, regulating temperature for better sleep.
Purity vs. EMF: Electric blankets contain hard wiring that emits EMF radiation. The HUB 2 cover is 100% hydro-powered with zero electronics on the surface, ensuring a completely EMF-free sleep zone.
Comfort vs. Wire: Say goodbye to the stiff, hard electrical wiring found in blankets. The HUB 2 uses soft, flexible hydro-tubes that are discrete beneath your sheets.
Dual-Zone Control: Unlike any blanket, the single HUB 2 unit provides dual-zone climate control so both partners can set their own temperature.
How much energy does the HUB 2 use?
Sustainable, Low-Consumption Performance.
The HUB 2 features an improved, energy-reduction design that typically uses up to 70% less electricity than a standard reverse-cycle AC unit. Its key advantage is smart thermal control: it only uses high power briefly to reach your target temperature. Once achieved, power is drastically reduced to simply maintain the perfect climate, saving energy while you sleep.
HUB 2 does not replace the function of AC on hot nights. It requires a room temperature below 24 degrees, and window ventilation if you do not have a AC.
How loud is the HUB 2?
Virtually Silent Operation.
The HUB 2 is engineered to ensure nothing disturbs your rest. In both Standard and the intelligent Sleep modes, the unit operates at a whisper-quiet level of less than 32 dB. Even in high-power Turbo mode, the noise remains minimal, staying under 35 dB.
Will it Leak?
Leak‑Free Reliability.
The HUB 2 is engineered with obsessive quality control to ensure peace of mind. Every unit undergoes repeated full operational checks before shipping.
Our mattress pads have achieved zero leaks during testing, thanks to industrial‑grade water connections sourced from suppliers trusted by global appliance brands. OAK SLEEP’s design and testing protocols guarantee durability, reliability, and a leak‑free sleep experience.
Is there a subscription?
No Subscriptions. Full Ownership.
OAK SLEEP believes that if you buy a product physically, you should own it outright. The HUB 2 delivers world‑class hydronic cooling and heating without requiring ongoing fees. Unlike competitors who charge subscriptions for access to features, OAK SLEEP has already built and tested the algorithms that optimise sleep recovery. That means you enjoy all the benefits — deeper sleep, sharper energy, and reliable performance — with a single purchase and no hidden costs.
How does it compare to Eight Sleep?
OAK SLEEP vs. Eight Sleep.
Eight Sleep is the global leader in advanced sleep technology, offering hydronic cooling with embedded biometric sensors that track heart rate, breathing, and movement. These features enable dynamic adjustments but require an ongoing subscription, and the sensors introduce EMF exposure directly under your body.
OAK SLEEP HUB 2 takes a different path: subscription‑free ownership, zero‑EMF design by keeping electronics out of the pad, and obsessive reliability testing. Both deliver great cooling and heating, but OAK SLEEP is engineered for health, performance and long‑term value without hidden costs.
Who do you NOT recommend HUB 2 for?
We don't recommend HUB 2 for customers looking to replace AC. HUB 2 on cooler nights, can minimise and eliminate AC use. However on warm nights, it needs a reasonable room temperature to chill the water.
We don't recommend the HUB 2 for medical use.
Shipping?
Free Shipping. Melbourne Warehouse.
- Same day dispatch before 1PM
- Metro: 1-4 Days
- Regional: 3-8 Days
- New Zealand: 6-9 Days
Returns and Exchanges?
30 Day Returns
We accept change of mind returns on unopened products only due to hygiene reasons.
12 Month Warranty.
Please consult the Returns Policy in the website footer for further details.
Why OAK SLEEP?
OAK SLEEP is dedicated exclusively to thermal sleep technology. We don't build mattresses—we build the future of personalized sleep climate.
We are an Australian Sleep Technology Company based in Melbourne, Australia.
Our current flagship, The HUB 2, is the culmination of years of research, designed to deliver superior rest by focusing on what truly matters:
- Unbeatable Value: We offer a class-leading temperature range and dual-zone control for less than 50% of the cost of comparable competitor systems.
- True Ownership: Enjoy total comfort, completely subscription-free.
- Pure Wellness: The water-based system guarantees an EMF-free sleep surface and an app-free design that keeps your bedroom clear of unnecessary wireless frequencies.
OAK SLEEP is already innovating the next generation: we are currently finalizing the HUB ULTRA, a new flagship product featuring advanced app control and smart mapping, set for an exclusive Australian release in 2027.
We are a technology company focused on one thing: maximising your sleep, so you can maximise your life.
Do you have a showroom?
We skip the expensive showrooms to pass the savings directly to you. This direct-to-consumer model is key to our aggressive value proposition.
While we don't have a public showroom, we operate a dedicated fulfillment warehouse here in Melbourne. We do however occasionally host pop-up events—sign up for our email list to stay updated! Our Melbourne-based team is always here to help; we can schedule personal phone or video demonstrations to answer any questions you have.
See Contact Us in the website footer!