Tommee Tippee
Groegg2 Room Thermometer
5.5/10 overall£20.00
A colour-changing egg-shaped room thermometer that shows at a glance whether the nursery is too hot, too cold, or just right.
The verdict
The Groegg2 is a colour-changing egg-shaped room thermometer, not a white noise machine, that glows blue, green or amber to show at a glance whether a nursery is too cold, right, or too warm. It's a low-cost companion to a sound machine that supports safer-sleep temperature guidance, though it measures room temperature only, not the baby's own temperature.
Not a white noise machine at all, but a genuinely useful bedside companion to one: the Groegg2 glows a different colour depending on room temperature (blue for too cold, green for the recommended 16-20°C range, amber for too warm), which matters directly for safer-sleep guidance given overheating is a recognised risk factor.
It doesn't compete directly with a white noise machine like the VAVA Sleep Soother — most parents run the two together, checking the Groegg's colour when they check on their baby rather than relying on it as a sound source at all.
The main limitation is that it measures room temperature only, not the baby's own temperature, and a room reading green doesn't guarantee correct baby clothing or tog rating for the sleeping bag being used — it's one input into safer-sleep decisions, not a complete solution on its own.
Is the Groegg2 Room Thermometer worth it?
- At-a-glance colour coding, no reading a display in the dark
- Supports safer-sleep temperature guidance
- Portable, no wiring needed
What are the downsides of the Groegg2 Room Thermometer?
- Measures room temperature only, not baby's own temperature
- No numeric readout on the base model
- Doesn't replace correct sleeping bag tog selection
Specs
- Power
- Battery
- Display
- Colour-changing glow, no numeric readout on base model
- Portable
- Yes, no wiring needed
- Ideal range shown
- 16-20°C (green)
How we scored it
Sound Quality
How consistent and non-looping the white noise sounds over a full night.
Not a sound device — included as a common companion purchase, scored low on this criterion by design.
Ease of Use
How simple it is to set timers, volume and routines without a manual.
Colour-coded glow is instantly readable, even half-asleep.
Value for Money
Features and battery life relative to price.
Inexpensive and directly supports safer-sleep temperature guidance.
Weighted by importance for this category — see our editorial policy for how we test.
How this review was done
We haven't used the Groegg2 Room Thermometer ourselves yet. This review is built from Tommee Tippee's published specifications and product information, and scored the same way as everything else on the site. We'll update it, and the badge above, once we've tested it hands-on.
How it compares
|  |  |  | |
|---|---|---|---|---|
| Price | £20.00 | £24.99 | £30.00 | £59.95 |
| Overall score | 5.5/10 | 6/10 | 8.4/10 | 4.3/10 |
| Power | Battery | — | USB rechargeable | — |
| power | — | USB powered (3.5mm cable, adaptor not always included) | — | Mains powered via adaptor |
| night_light | — | Yes, doubles as a comfort light | — | Dim, low-blue amber-toned setting |
Frequently asked questions
What does the Groegg2 actually do?+
It glows a different colour depending on room temperature — blue for too cold, green for the recommended 16-20°C range, and amber for too warm — which is directly relevant to safer-sleep guidance since overheating is a recognised risk factor.
Does the Groegg2 measure my baby's temperature?+
No — it measures room temperature only, not the baby's own body temperature, so a room reading green doesn't guarantee correct baby clothing or the right sleeping bag tog rating.
Does the Groegg2 replace a white noise machine?+
No — it doesn't compete with a white noise machine like the VAVA Sleep Soother at all; most parents run the two together, checking the Groegg's colour when checking on their baby rather than relying on it for sound.
Is the Groegg2 easy to read at night?+
Yes — its colour-coded glow is instantly readable even half-asleep, with no need to read a numeric display in the dark, since the base model has no numeric readout at all.
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Reviewed by
Sepehr
Software engineer, soon-to-be dad, uncle to four — the tech-obsessed half of the two of us testing this stuff. Currently building this site with my wife, ahead of our own baby arriving.