Is float therapy safe during pregnancy? A first-timer’s guide

Somewhere around the middle of a pregnancy, a lot of people start looking at a float tank a little differently. An hour lying weightless in warm water sounds very appealing when you're carrying more than usual and your feet have opinions about it. Then the second thought arrives: is it actually safe? This guide answers that as plainly as we can. It covers what most float centres ask, why the first trimester is treated differently, what to talk through with your midwife, and how to make a float comfortable if you get the go-ahead.

One thing first. We're a float centre, not your midwife. Everything here is general information to help you have a better conversation with the people looking after your pregnancy, and their advice comes before ours every time.

The short answer: often yes, with a few conditions

For a healthy, uncomplicated pregnancy, floating is something many people enjoy, and plenty of float centres welcome pregnant floaters. The common pattern, here in New Zealand and overseas, comes with three conditions attached:

Wait until the second trimester. Most centres ask you not to float in the first twelve or so weeks.

Check with your midwife or GP before you book. They know your pregnancy, your blood pressure and your history. We don't.

Tell the centre you're pregnant. So they can talk you through the room, and so they can let you know about any late-pregnancy cut-off. Several centres stop floating somewhere around 36 to 37 weeks.

At Float Culture we ask the same. Please wait until your second trimester, get a yes from your midwife or GP, and let us know how far along you are when you book. If anything about your pregnancy has been flagged as higher risk, that conversation with your midwife matters even more.

Why the first trimester is treated differently

You'll find plenty of confident opinions online about why. The honest version is simpler: there's very little research on floating in early pregnancy, in either direction. Nobody has shown that floating in the first trimester causes harm, but nobody has studied it closely enough to say it's fine either.

When the evidence is thin, the sensible default is caution, and that's what most float centres have settled on. The first trimester is also when a lot of people feel their worst: nausea, tiredness, light-headedness. An hour in warm, salty water isn't a natural fit for a stomach that's already unsettled. By the second trimester, most people feel steadier, and the float has a much better chance of being the restful hour you were hoping for.

We'd rather you waited a few weeks and enjoyed it than floated early and spent the hour feeling queasy.

When the research is quiet, the kindest thing we can offer is a careful default. A few weeks of waiting costs very little, and the water will still be here.

What a float is actually like when you're pregnant

A float room is warm, quiet and entirely yours. You shower, step into water about 25cm deep, and lie back. The water holds over 500kg of Epsom salt, dense enough that you float on the surface without any effort at all. You can't sink, and you don't need to be able to swim.

The water is kept at 35.5°C, close to the temperature of your skin, so it isn't a hot soak. After a while the edges blur and you lose track of where your body ends and the water begins. For many pregnant floaters, the part they notice first is simply the feeling of the water taking their weight. No chair to shift in, no pillow to rearrange, nothing pressing anywhere. Just warm water holding all of you, for a whole hour.

We want to be careful about what we promise here. Floating isn't a treatment for any pregnancy symptom, and we'd never suggest it was. What it offers is an hour off your feet, in the quiet, with nothing asking anything of you. For a lot of people at this stage of life, that alone is worth a great deal.

Questions to take to your midwife

A short, specific conversation goes further than a general "is floating okay?" Here's what we'd suggest raising:

Your blood pressure. Warm water and lying still for an hour can leave some people light-headed when they stand up. If your blood pressure runs high or low, mention the float specifically.

Lying on your back. You float face up for most of the hour. Later in pregnancy, many midwives have views on how long you should lie flat on your back, so ask yours how that applies to floating.

Anything flagged in your pregnancy. Bleeding, placental concerns, gestational diabetes, a history of complications. Any of these is a reason to get a clear answer before you book.

How far along you'll be. If you're planning a float later on, check it fits within both your midwife's advice and our cut-off.

Most of these conversations take two minutes at your next appointment, and you'll float with a lot more ease knowing the answer.

Making your float comfortable

Choose your room. We have three float rooms at Grafton. The Ocean and Cosmic rooms are as tall as the ceiling, so you walk in rather than climbing into a pod, which some people find easier later in pregnancy. Mention it when you book and we'll do our best to put you in one.

Take your time getting in and out. The water is slippery with salt, so move slowly, use the edge for balance, and sit up before you stand. There's no rush at either end of the hour.

Find your position. Let your arms rest wherever they're comfortable, by your sides or above your head. If lying flat feels uncomfortable at any point, simply sit up. You're in control of the whole hour, and you can end it whenever you like.

Eat lightly and hydrate. Arrive with something light in your stomach and a glass of water in you. Allow about 90 minutes for the whole visit, so you can shower, float, and sit quietly in the lounge afterwards without watching the clock.

Listen to your body. If you feel dizzy, unwell or simply not right, get out, sit down, and let our team know. A float you finish early is still a perfectly good float.

If you're new to floating altogether, our beginner's guide to your first float covers the rest of the practical detail, and our float therapy page shows the rooms and pods themselves.

Questions people ask about floating in pregnancy

Can you use a float tank while pregnant?

Often, yes. Many float centres welcome pregnant floaters from the second trimester onwards, provided your midwife or GP is happy and you let the centre know you're pregnant. Most also have a late-pregnancy cut-off, so ask when you book.

Why can't you float in the first trimester?

Mostly because there's so little research on floating in early pregnancy that caution is the sensible default. The first trimester is also when nausea and light-headedness tend to peak, which doesn't pair well with an hour in warm, salty water.

Is the float tank water too hot for pregnancy?

The water in our pods and rooms is kept at 35.5°C, close to the temperature of your skin, so it's warm rather than hot. If you have any concerns about warm water during your pregnancy, raise them with your midwife before you book.

Can I use the sauna or ice bath while pregnant?

Fire & Ice is a different conversation from floating. The sauna runs at 80 to 90 degrees and the plunge at 4 to 5 degrees. If you're pregnant, please check with your doctor or midwife first and talk to our team before booking. Our contrast therapy page has the full detail.

Is there another option if floating isn't right for me yet?

Our pregnancy massage is designed for exactly this stage, with careful positioning and support. Let us know how far along you are when you book. You can read more on our massage page.

The water will hold you whenever you're ready. There's no hurry to get there.

If you're in your second trimester or beyond, your midwife is happy, and an hour of warm, quiet weightlessness sounds like exactly what this week needs, we'd love to see you. A single float is $95 for a full 60 minutes in your own private room, or our intro offer gives you four 60-minute sessions for $240, mixed and matched between float and Fire & Ice. A float voucher also makes a thoughtful gift for someone who's expecting. You'll find everything on our pricing page.