How Long Should I Let My Baby Sleep After Vaccinations?

Vaccinations come with the crossing of the monthly age milestones, and for many babies, this is their sleepy head era. The sleepiness displayed by babies after their vaccinations can be worrisome for some parents, especially when there are significant changes to the baby’s sleep patterns. Parents often wonder, “How long should I let my baby sleep after vaccinations?” Each baby is different, but allowing them to rest as needed is crucial for their recovery and well-being.

But you need not worry. The sleepiness shown by your baby is the perfect indication that the vaccine is working. It’s perfectly fine for vaccines to make babies sleepy. This article will be looking at why this is so and the common reactions by babies after taking their shots. You will find below frequently asked questions on baby’s post-vaccination rest.


1. How Long Does Vaccine Pain Last In Babies?

Vaccinations are a crucial aspect of a baby’s health care. It does come with pain and many parents find these moments unpleasant. However, it does offer your baby protection against different diseases.

Even though vaccines in general are safe, it comes with tolerable pain. It is common for babies to feel a little discomfort and pain at the injection site. The duration in which the pain lasts can vary and this depends on many factors.

In some cases, babies may feel the pain from the vaccine for a short while while others may feel it for a longer timeframe. Babies often become fussy and cry for minutes to hours after the shot. The site from the injection may also become sore, swollen, or red but these symptoms should be resolved within 24 to 48 hours.

To help manage the pain, parents can apply cold compress over the site and massage gently. It is not recommended to give unprescribed pain relievers to your baby. If you have complaints, tend them to your healthcare provider and they will help you.

2. Is It Normal For a Baby To Sleep After Injections?

It is totally normal for a baby to sleep after injections or vaccine shots. Vaccination can be an overwhelming process for infants and their bodies try to adjust to the changes caused by the vaccine. This adjustment can lead to tiredness or fatigue hence they will need rest.

The shots from the vaccine trigger the immune system to produce a natural response or defense, leading to temporary fatigue. Also doctors’ appointments often cause anxiety and stress for babies. This can also contribute to the fatigue they experience.

Sleeping after vaccination helps the body to recover and also aids the success of the immunization. Your baby will feel stronger and better after a restful sleep. However, it should also be noted that the way babies react to immunization differs. Some babies may not feel sleepy afterwards nor will their sleep patterns be altered. If you notice anything concerning about your baby, see your doctor.

3. Do Babies Sleep a Lot After Vaccination?

The sleep patterns shown by babies after vaccination differs. Some infants feel more sleepy after taking their vaccines while others may not experience increased sleepiness. If your baby is sleeping a lot after vaccination, it’s totally okay. This behaviour is only temporary and will change with time. All you need to do as a parent is to provide comfort and help them ease into the changes.

4. What To Expect After Baby’s First Vaccination?

Babies exhibit mild behavior changes after taking their first vaccination. Knowing what to expect helps you as a parent to be a source of comfort for your baby. Here are some things to expect after your baby’s first vaccination.

Mild Discomfort

A mild discomfort at the site of injection during and after taking a vaccine is totally normal. This may come with redness, tenderness, or swelling at the site of the injection.


Depending on the vaccine administered, a little fever is a common response too. This happens due to the body defences against the vaccine as the immune system is developing immunity to it. Note that, this fever is often very mild and should be gone after a maximum of 48 hours.


Many babies become fussy after taking their first vaccines. This is often due to the discomfort caused by the body’s reaction to the discomfort. Holding your baby and cuddling them helps in managing this. Offering distractions like play objects and music also helps.

Changes in Appetite and Sleep Patterns

There may be changes to their sleep patterns and appetite but this is temporary. It’s not uncommon for babies to reject being fed and struggle to sleep. Try to offer them fluids and space their feeding.

Allergic Reactions

Although, allergic reactions due to vaccines are rare, it can happen too. These could be difficulty breathing, fever, hives, or swelling around the face and throat.

Watch Out For Serious Side Effects

While this is extremely rare, it is necessary to be aware of the possible signs that indicate there could be a problem. These signs include, high and prolonged fever, seizures, consistent crying. Seek urgent attention if any of these signs are observed.


5. How To Ease The Pain of a Baby Vaccination

There are simple things parents can do to ease the pain that comes with baby vaccination. Some of the ways to ease the pain of a baby vaccination include:

Try to Stay Calm

Babies have a way of picking up on the emotions of their caregivers. By staying calm, you will be able to comfort your baby and help them feel safe.

Gentle Touch

Touch is powerful and signals care and safety. Try to hold and cuddle your baby before and after they take their shots. Holding them while they get these injections, where possible, can be helpful too.

Breastfeeding or Bottle Feeding

Feeding is a good form of distraction from the pain for babies. Either bottle feeding or breast feeding will suffice.


Asides feeding, other forms of distractions can be helpful too. Offer your baby nice toys or colorful objects to take their attention off the shots before they are injected.

Body Contact

Skin-to-skin contact helps with the release of soothing hormones that confer feelings of safety. Try doing skin-to-skin activities with your baby after the vaccination.

Pain Relief

You can request for pain relievers and the appropriate pain relievers can be prescribed by your healthcare provider.


Swaddling provides a sense of comfort and safety for some babies. It can help dispel stress.

Remember that every baby is unique and you may need to try out different techniques to find what works for your baby.


6. Which Month Vaccine is Painful For Babies?

Vaccinations in general create a bit of discomfort. The intensity of this discomfort is not tied to a certain month’s vaccination. The discomfort created is different for every baby and depends on some factors.

Some babies will have mild discomfort including redness or soreness irrespective of the month. Vaccines commonly known to cause temporary distress include those against rubella, mumps, and measles.

The spacing of the vaccines is done to help manage and reduce possible side effects.

7. Should I Let Baby Sleep After Vaccines?

It is perfectly fine to let your baby sleep after vaccines are administered. This can be beneficial in aiding the job of the vaccine. It also helps manage post-vaccine troubles like fever, fussiness, and soreness.

Sleeping helps to strengthen the immune system and facilitate the body’s recovery. However, it’s very important to pay attention to your baby and their reactions after each vaccine shot. Whenever anything seems to be slipping out of hand, contact your healthcare provider. Stopping your baby from sleeping will do them no good.

Feeling sleepy after a vaccine is a normal and common response and you should not try to stop your baby from getting the sleep their body needs.

Read Also: Baby Massage For Sleep 


8. Baby Is Not Sleeping After Vaccination – What To Do?

While some babies feel sleepy and sleep well after vaccinations, some do not feel sleepy and have a hard time getting quality sleep. If the latter is your baby’s reaction, it is important to remain calm and try your best to comfort your baby.

To help Induce sleep, you can try to create a calming sleep environment and possibly sleep time cuddles. All your baby needs is to feel safe and comfortable and their sleep patterns will improve. However, if there are no changes, inform your doctor.

9. Baby Sleepy 3 Days After Vaccination – What To Do?

It’s okay for your baby to feel sleepy three days after a vaccination. You really do not have to do anything. Just allow your baby to rest and feed them regularly. So long as there are no unusual signs, the sleepiness will resolve with time.

10. Do Babies Sleep a Lot After 2 Months Shots?

The amount of sleep babies require after their 2 months shot varies. Many babies will not face sleep challenges or changes while others will. Although all infants will need all the rest and comfort they can get due to the actions of the vaccine.

11. Baby Very Sleepy After 4 Months Vaccination – What To Do?

Sleepiness after the 4 months vaccination is expected behavior. Simply provide a conducive and quiet environment for your baby to get enough rest.

12. Baby Very Sleepy After 6 Months Shots – What To Do

Increased irritability and sleepiness are typical reactions after the 6 months shot. Allow your baby rest while offering fluids and monitoring their temperature.

13. How Long Should I Let My Baby Sleep After Vaccinations?

You should let your baby sleep for as long as their body demands after the vaccinations. Let your baby’s body be the guide while you follow along.

Read Also: Best Sleeping Position For Colic Baby


Conclusion on: How Long Should I Let My Baby Sleep After Vaccinations?

Sleeping after vaccination is nothing to worry about. By allowing your baby sleep for as long as they need, you will be helping them to listen to their body and this promotes general recovery.