A pregnancy sleep diary to take to your next appointment

A pregnancy sleep diary is a short record of your sleep timing, nighttime awakenings, and physical symptoms, kept over a few nights before a prenatal appointment. It takes about two minutes each morning, needs no special tools, and gives your doctor or midwife something concrete to work with rather than a rough summary recalled during a busy visit.

Choose a manageable recording period

Three to five nights is enough to show a pattern worth bringing to an appointment. Start logging as soon as you know a visit is coming — there is no need to keep a diary throughout your entire pregnancy unless a clinician specifically asks you to.

Choose a method you will actually stick with. A notes app on your phone, a small paper notebook on the nightstand, or a printed template all work equally well. The format matters far less than consistency. If you miss a night, simply pick up again the following morning without trying to reconstruct what you have lost.

Fill in your notes in the morning while the night is still recent. Waiting until the day of the appointment and trying to piece together a week of nights from memory produces much less reliable detail, and the effort often leads people to abandon the diary entirely before they have collected anything useful.

If your appointment is less than three days away, start immediately. Two nights of notes is still considerably more informative than none. The point is not a complete dataset — it is enough of a pattern for a clinician to ask better follow-up questions.

Record the pattern rather than grading your sleep

The natural impulse is to rate last night as "bad" or "okay," but a score gives a clinician almost nothing to work with. Instead, note what actually happened in plain terms:

• **Bedtime:** roughly when you lay down to try to sleep
• **Sleep onset:** an estimate of how long before you felt you dropped off
• **Awakenings:** how many times you woke, and a brief note on why — bathroom, discomfort, heartburn, anxiety, vivid dreams¹
• **Wake time:** when you got up for the day
• **Position:** whether a particular position helped or made things worse

In the second and third trimesters, sleeping on your side is generally recommended. After 28 weeks, falling asleep on your back has been associated with an increased risk of stillbirth, possibly related to the flow of blood and oxygen to the baby.¹ ACOG notes that in the second and third trimesters, lying on your back may compress a major blood vessel that carries blood to the uterus, which can cause dizziness and may reduce blood flow to the fetus.² If you wake repeatedly because you have rolled onto your back, or because side-sleeping itself is uncomfortable, that pattern is worth recording.

Keeping one or both knees bent and placing a pillow between your knees and another under your bump can help.² The Cove Pregnancy Pillow is a full-length crescent body pillow designed for side-sleeping support, with adjustable shredded gel memory foam fill you can add or remove through an inner zip. If you want something more compact for the couch or travel, the Cove Pregnancy Pillow Mini packs into a suitcase and works as a knee or back support using the same fill approach.

For a broader look at side-sleeping positions and technique, the complete guide to sleeping on your side covers pillow placement and common discomforts in detail.

Add symptoms and questions in your own words

Sleep disruption during pregnancy rarely has a single cause.¹ Common contributors include needing to urinate frequently — particularly in early pregnancy and again in the third trimester as the baby's head presses on the bladder⁵ — heartburn or acid reflux that worsens when lying down⁴, pelvic girdle pain that makes turning over in bed difficult³, leg cramps that tend to occur at night⁵, and anxiety or vivid dreams.¹

Recording which symptoms appeared on which nights helps your doctor or midwife identify what is actually driving the disruption. "Woke at 2 am with heartburn, took 45 minutes to get back to sleep" is a more actionable note than "bad night again."

Write your questions down as they occur to you — 3 am is a surprisingly productive time to think of things to ask. Do not edit them into formal clinical language before the appointment. "Why do I keep waking at the same time every night?" or "Is it safe to take antacids every night?" are exactly the kinds of questions a clinician can answer.⁴ If you are experiencing new or louder snoring, note that too — the guide on new or louder snoring during pregnancy explains when it is worth raising with your care team.

For heartburn specifically, the NHS notes that sleeping with your head and shoulders propped up and sleeping on your left side may help reduce symptoms at night.⁴ If that changes how often you wake, or makes things worse, that detail belongs in your diary.

Summarize the main problem for your appointment

A full nightly log is useful, but even a one-paragraph written summary is far more helpful than an unstructured verbal account recalled on the spot. Before your appointment, write two or three sentences that cover the essentials and hand them to your doctor or midwife at the start of the consultation, or read them aloud. This sets the agenda before time runs short.

A practical summary covers three things:

1. The main problem in plain terms ("I wake two or three times a night and take about an hour to get back to sleep") 2. The symptom most often linked to it ("usually heartburn or needing the bathroom") 3. Your most pressing question

Below is a simple template you can copy into a notebook or notes app before your next appointment:

Fill in only what you can recall. Blank cells are fine — a partially complete table still tells a story, and it is far easier for a clinician to work with something imperfect than with nothing at all.

If writing in a table does not suit you, a few bullet points per morning achieves the same result. The format is not the point — capturing a consistent set of details each day is.

Know when not to wait for the next appointment

A sleep diary is a tool for a scheduled care conversation, not a reason to delay contacting a clinician when something feels urgent. The NHS advises speaking to your doctor or midwife without waiting for a routine appointment if sleep disruption is accompanied by symptoms of depression, such as feeling hopeless or losing interest in things you normally enjoy.¹ There is treatment available that can help, and it is worth raising early rather than waiting to see whether things improve on their own.

Seek prompt medical attention rather than logging and waiting if you notice any of the following:

• [ ] Severe shortness of breath or chest pain
• [ ] Sudden or severe swelling of the face, hands, or feet
• [ ] A headache that does not ease and is accompanied by visual disturbance
• [ ] Pain when urinating, or blood in urine⁵
• [ ] Pelvic pain so severe that you cannot move around comfortably, get out of a car, or turn over in bed³
• [ ] Any symptom that feels sudden, severe, or meaningfully different from what you have been experiencing

For everything else — the accumulated tiredness, the nighttime heartburn, the difficulty finding a comfortable position as your bump grows — a few days of straightforward notes can make your next appointment considerably more productive.¹⁴ Your doctor or midwife can help more precisely when they can see what is actually happening rather than reconstructing it from memory under time pressure.

For more on how sleeping position relates to common nighttime discomforts, the guide on left side vs right side sleeping covers the evidence behind each position.

More in this series: start with Sleeping during pregnancy, sleep trackers during pregnancy: useful patterns and important limits and having a sleep study during pregnancy: what to ask beforehand.