insomnia; she is having problems with sleeping; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 83 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 25Feb2021 08:00 (Batch/Lot number: unknown) at the age of 82 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Diabetic", start date: 2005 (ongoing), notes: Verbatim: Diabetic. Family history included: "high blood pressure in the family" (unspecified if ongoing), notes: Family Medical History Relevant to AE(s): high blood pressure in the family. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (1st dose, Caller states both the 1st and 2nd doses were given in her left arm, 1st dose was administered at about 9:00am.), administration date: 04Feb2021, when the patient was 82 years old, for Covid-19 immunisation. The following information was reported: INSOMNIA (non-serious), outcome "not recovered", described as "insomnia"; INSOMNIA (non-serious), outcome "not recovered", described as "she is having problems with sleeping". Therapeutic measures were taken as a result of insomnia, insomnia.  Additional information: It was reported that seriousness was no. It was stated that she received the second dose of the pfizer covid 19 vaccine on 25Feb2021 and has had insomnia since. It was stated that wanted to know if this is a side effect. It was reported that she already spoke with DSU. Possible duplicate AE. Age at the time of onset event reported as 82 Year. Reaction/event as reported by primary source noticed she is having problems with sleeping. It was reported that she is having problems with sleeping was ongoing. It was stated that she does not have the lot number, expiry date or NDC number to provide at this time. Expiry Date of Pfizer shot was unknown. The reason for patient taking Pfizer shot (Verbatim) reported as they told me that was what was available. Other Products reported as no. Investigation assessment was reported as no. It was stated she does not know the specific date that the problems with sleeping began but states it began sometime after 25Feb2021 and is persisting and initially she did not have treatment for the problems sleeping but then states she did caller her HCP last night and the HCP suggested Benadryl which she took 50mg of and states that did not help with the problems with sleeping and states she does not have the lot number, expiry date or UPC number to provide for the Benadryl at this time. She states for the indication for the Pfizer shots she does not follow that question and then states they told her that was what was available. She states the strength of the vaccine is unknown. It was reported that 1st dose was administered at about 9:00am and the 2nd dose was administered at about 8:00am. Patient states both the 1st and 2nd doses were given in her left arm. Vaccination Facility Type was reported it is just a site. Vaccine administered at military facility was no. History of all previous immunization with the Pfizer vaccine considered as suspect was 1st dose Pfizer shot administered on 04Feb2021. Additional Vaccines Administered on same date of the pfizer suspect was reported as none. Prior Vaccinations (within 4 weeks) was reported as none. Relevant tests reported as none.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.